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Namhyung Kim 0d435bf8c3 perf lock: Add -c/--combine-locks option 
The -c or --combine-locks option is to merge lock instances in the
same class into a single entry.  It compares the name of the locks
and marks duplicated entries using lock_stat->combined.

 # perf lock report
                Name   acquired  contended   avg wait (ns) total wait (ns)   max wait (ns)   min wait (ns)

       rcu_read_lock     251225          0               0               0               0               0
 &(ei->i_block_re...       8731          0               0               0               0               0
 &sb->s_type->i_l...       8731          0               0               0               0               0
  hrtimer_bases.lock       5261          0               0               0               0               0
  hrtimer_bases.lock       2626          0               0               0               0               0
  hrtimer_bases.lock       1953          0               0               0               0               0
  hrtimer_bases.lock       1382          0               0               0               0               0
    cpu_hotplug_lock       1350          0               0               0               0               0
  hrtimer_bases.lock       1273          0               0               0               0               0
  hrtimer_bases.lock       1269          0               0               0               0               0

 # perf lock report -c
                Name   acquired  contended   avg wait (ns) total wait (ns)   max wait (ns)   min wait (ns)

       rcu_read_lock     251225          0               0               0               0               0
  hrtimer_bases.lock      39450          0               0               0               0               0
 &sb->s_type->i_l...      10301          1             662             662             662             662
    ptlock_ptr(page)      10173          2             701            1402             760             642
 &(ei->i_block_re...       8732          0               0               0               0               0
        &xa->xa_lock       8088          0               0               0               0               0
         &base->lock       6705          0               0               0               0               0
         &p->pi_lock       5549          0               0               0               0               0
 &dentry->d_lockr...       5010          4            1274            5097            1844             789
           &ep->lock       3958          0               0               0               0               0

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220127000050.3011493-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-10 15:41:27 -03:00
..
arch
tools headers UAPI: Sync files changed by new set_mempolicy_home_node syscall
2022-01-20 11:20:37 -03:00
bench
perf cpumap: Migrate to libperf cpumap api
2022-01-22 17:08:42 -03:00
dlfilters
perf dlfilter: Drop unused variable
2021-12-16 12:18:11 -03:00
Documentation
perf lock: Add -c/--combine-locks option
2022-02-10 15:41:27 -03:00
examples/bpf
perf tools: Fix various typos in comments
2021-03-23 17:13:43 -03:00
include
perf build: Move perf_dlfilters.h in the source tree
2021-08-11 09:35:24 -03:00
jvmti
perf tools: Fix various typos in comments
2021-03-23 17:13:43 -03:00
pmu-events
perf test: Add pmu-events test for aliases with hyphens
2022-01-22 17:21:29 -03:00
python
tweewide: Fix most Shebang lines
2020-12-08 23:30:04 +09:00
scripts
perf scripts python: intel-pt-events.py: Fix printing of switch events
2021-12-28 17:26:25 -03:00
tests
perf test: Add parse-events test for aliases with hyphens
2022-01-22 17:21:41 -03:00
trace
perf beauty: Make the prctl arg regexp more strict to cope with PR_SET_VMA
2022-02-01 13:03:27 -03:00
ui
perf annotate: Avoid TUI crash when navigating in the annotation of recursive functions
2022-01-10 15:47:30 -03:00
util
perf annotate: Try chroot filename for objdump
2022-02-10 15:34:13 -03:00
.gitignore
Add 'tools/perf/libbpf/' to ignored files
2021-11-08 11:33:35 -08:00
Build
perf daemon: Add daemon command
2021-02-09 15:42:57 -03:00
builtin-annotate.c
perf tools: Check vmlinux/kallsyms arguments in all tools
2021-11-07 12:27:38 -03:00
builtin-bench.c
perf bench: Use unbuffered output when pipe/tee'ing to a file
2021-12-16 12:18:11 -03:00
builtin-buildid-cache.c
perf record: Disable debuginfod by default
2022-01-15 17:41:25 -03:00
builtin-buildid-list.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-c2c.c
perf cpumap: Give CPUs their own type
2022-01-12 14:28:23 -03:00
builtin-config.c
…
builtin-daemon.c
perf daemon: Remove duplicate sys/file.h include
2021-10-08 15:14:50 -03:00
builtin-data.c
perf data: Correct -h output
2021-08-31 15:12:00 -03:00
builtin-diff.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-evlist.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-ftrace.c
perf ftrace: system_wide collection is not effective by default
2022-02-06 09:19:51 -03:00
builtin-help.c
…
builtin-inject.c
perf inject: Try chroot directory when reading build-id
2022-02-10 15:33:51 -03:00
builtin-kallsyms.c
…
builtin-kmem.c
perf cpumap: Give CPUs their own type
2022-01-12 14:28:23 -03:00
builtin-kvm.c
perf tools: Allow controlling synthesizing PERF_RECORD_ metadata events during record
2021-09-17 08:44:19 -03:00
builtin-list.c
perf list: Display hybrid PMU events with cpu type
2021-10-25 13:47:42 -03:00
builtin-lock.c
perf lock: Add -c/--combine-locks option
2022-02-10 15:41:27 -03:00
builtin-mem.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-probe.c
perf tools: Check vmlinux/kallsyms arguments in all tools
2021-11-07 12:27:38 -03:00
builtin-record.c
perf record: Disable debuginfod by default
2022-01-15 17:41:25 -03:00
builtin-report.c
perf callchain: Enable dwarf_callchain_users on arm64
2021-12-21 18:35:44 -03:00
builtin-sched.c
perf cpumap: Give CPUs their own type
2022-01-12 14:28:23 -03:00
builtin-script.c
perf script: Fix printing 'phys_addr' failure issue
2022-01-22 17:02:08 -03:00
builtin-stat.c
perf cpumap: Migrate to libperf cpumap api
2022-01-22 17:08:42 -03:00
builtin-timechart.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-top.c
perf tools: Check vmlinux/kallsyms arguments in all tools
2021-11-07 12:27:38 -03:00
builtin-trace.c
perf tools changes for v5.17: 1st batch
2022-01-18 06:32:11 +02:00
builtin-version.c
…
builtin.h
perf daemon: Add daemon command
2021-02-09 15:42:57 -03:00
check-headers.sh
tools lib: Adopt list_sort() from the kernel sources
2021-10-20 10:30:59 -03:00
command-list.txt
perf stat: Enable iostat mode for x86 platforms
2021-04-20 08:40:20 -03:00
CREDITS
…
design.txt
perf design.txt: Synchronize the definition of enum perf_hw_id with code
2021-11-13 18:11:50 -03:00
Makefile
perf tools: Add a build-test variant to use in builds from a tarball
2021-04-20 08:43:58 -03:00
Makefile.config
perf tools: Drop requirement for libstdc++.so for libopencsd check
2021-12-07 22:18:24 -03:00
Makefile.perf
perf ftrace: Add -b/--use-bpf option for latency subcommand
2021-12-16 12:18:12 -03:00
MANIFEST
perf MANIFEST: Add bpftool files to allow building with BUILD_BPF_SKEL=1
2021-11-07 15:39:28 -03:00
perf-archive.sh
perf archive: Fix filtering of empty build-ids
2021-03-06 16:54:31 -03:00
perf-completion.sh
…
perf-iostat.sh
perf stat: Enable iostat mode for x86 platforms
2021-04-20 08:40:20 -03:00
perf-read-vdso.c
…
perf-sys.h
…
perf-with-kcore.sh
…
perf.c
perf debug: Move debug initialization earlier
2021-05-27 13:24:22 -03:00
perf.h
…